Bobbin



N. E. LUCAS May 31 1927.

BOBBIN Filed Sept'. 14. 1925 Patented 'May 31, 1927.

Application filed September My invention relates to the class of devices used in spinning, and upon'which material, as roving is wound and from which it is unwound in the spinning operation, andan object of my invention, among others, is the production of a bobbin from whiehthe waste mass that is usually left on the bobbin after the principal part'of the mass has been taken off may be readily removed, and

without the use of devices other than the i other force be exerted to slide the mass tohand.- I A One form of bobbinlembody'ing myinven tion and in the constructionand use of which the objects herein set out, as-well as others, may be attained, is illustrated in the accompanying drawings, in which I Figure 1 is a view in side elevation of a bobbin embodying my invention.

Figure 2 is an end view of the same.

In the operation ofspinning amass of material in the form of a strand and composed of cotton or other fiber, and that is commonly termed roving? is wound'upon H a bobbin in a more or less even'manner, and

as a further step in the spinning operation this'strand 1S unwound from the mass in a manner that will be readily understood by those skilled'in the art. It generally happens, however,'that this mass is not'entirely removed from the bobbin in the spinning operation, and it, therefore,becomes:necessary toremove this mass, maybe} termed waste before the bobbin can be aganrfput .into use.

It has been a common practice heretofore to remove this waste mass from the bobbins by the use of a hook or knife, but this practice results in a mutilation of the bobbin that. soon becomes unfit for use. I Bobbin clean ing machines are also employed to a limited extent, but these are unsatisfactory. 'My invention provides means whereby the bobbin may be readily cleaned of a waste mass by the use of the hands only, the use of books, knives, or other devices that will mutilate the bobbin being avoided, my improved bObbll1,{iS illustrated in thedrawings herein, comprising a body 5 that may be formed from any suitable material, as wood, and in the form commonly employed in devices of this class. The outer surface of this body is highly finished, as by polishing, or by being treated with a coating of varnish,

shellac, or other substance that will'provide stantially even dept-h from side to side and V a smooth glossy surface.

In order that the Waste material may be 14; 1925'; [serial No. 56,195..

readily removed from the bobbin I provide a' groove or groovesthatfextend in a spiral direction along the body of the bobbin, these grooves having means-for exerting a slight frictional hold upon the mass to resistfto a slight degree,- turning movement of the bobbin within the mass. This causes the mass to be stretched sufficiently to loosen it, and'if, at thesame'time that the force is applied to turn the mass on'the bobbin, an-

Ward the end'of the bobbin, it will be found that the mass may be readily-slid oif such' hand, "the-latter being employed to turn thebobbln within the mass,and at the same .EEIQE, 1

NOAH LUCAS, OF NORWICH, CONNECTICUT;

time to withdraw the bobbin from the mass.

The grooves maybe inclined to the right or to the left, and the directionfof turning movement imparted to the bobbin in the operation of removing the mass will depend upon the direction-in which"'the;groove or grooves extend or are inclined." If the groove or' grooves-incline to the left, as

shownin thejdrawings, the bobbin shouldbe turned to the left, but if the groove or grooves inc-lineor run to the right, then the bobbin should be turned to theright inthe operationof removing the'mass of waste inaterial therefrom 7 3 Iii the form of the device illustrated here in a groove 6 is formed extending in a spiral direction lengthwise of theb'obbin and this groove is formed withpa shoulder TZ alongv one edge, said groove tapering gradually from said shoulder to the outer surface of the body and the shoulder is located on that side of the groove indicated by the direction in which the groove extends. That is, as illustrated herein the groove inclines to the left and the shoulder is, therefore, on the left hand side'of the groove, but if the groove" be inclined to the right, tlieintho shoulder should be located on the right side of'the groove. This description with re spect to the grooves refers to such groove on thatside of the bobbin next to the observer in Figural at the bottomthereof,

The bobbin is also provided'with a groove 8 inclined in a spiral direction, as above described, this groove, howevenbeing of subit is providedwith a filling 9, of felt or herein as I embodying a bobbin with" both forms'of the groove herein above described I contemplate as within the spirit and intent of my invention a bobbin that may be provided with either form alone of groove in such numbers as may be desired, or with both forms, or even with other arrangements of spiral grooves that will accomplish the same purpose.

Afurtherpurpose in providing the groove arranged as hereinbefore described is to fa; cilitate the winding of-the roving upon the bobbin, as such-roving'will adhere closer and tighter to the bobbin during the beginning of th Windingoperation of such'roving upon the bobbin, and during subsequent handling of the bobbin with; the roving.

thereon the latter is prevented from sliding off from the end or noseof the bobbin.

It will be understood that the felt'proje cts but a very slight distance beyond the surface of thebobbin, the showing in the resent the best embodiment thereof; but I desire to have it understood that the device figures of thedrawingbeing somewhat exaggerated in order to bring out this feature.

In accordance withthe provisions of the patent statutes-I have described the princie ples of operation ofmy invention, together with the device which I now consider to repshown is only illustrative and that theinvention may be carried out by other means and out.

1. Abobbin havinga groove extending in a spiral direction lengthwise along the side thereof and of a pitch to aid in the removal of material therefrom in a mass on application of a relative turning movement to the mass and bobbin, said groove having asingle shoulder located at one side thereof, an means for supporting the bobbin. I

2. A bobbin havinga groove extending in a spiral direction lengthwise along the side and partially around the bobbin, said groove havinga single shoulder located at oneside thereof, and means for supporting the bobs bin. 1

3. A bobbin having a smooth polished sur- 7 face with a groove therein extending length-.

wise thereof, and a filling comprising material having an affinity, for matter wound upon the, bobbin, said fillin g being. located in said groove with the outer surface of the filling substantially flush with the outer surface of th bobbin.

applied touses other than those above set v 4. A bobbin having a smoothpolished' sur 7 face with a groove therein e xtendingspirally lengthwise thereof, and a filling comprising material having an aflinity for matter Wound upon the bobbin, saidfilling being located in said groovewith the outer surface of the filling substantially flush with the outer surface of the bobbin.

a spiral direotion along the side and lengthwise thereof, said groove commencing near the bottom of the bobbin and terminating substantially at the top and extending not more than once around thefbobbin, said groove alsohaving a single shoulder. located at one side thereof. 7 V.

' NOAH EQLUGA S '5 5. A bobbin having a groove extending in 

